Recent content by wattmatters

Yes but $150! Man Pis are expensive. Pretty sure mine were never that much. You still need to purchase a Solar Assistant Licence. It might be cheaper just to buy a pre-loaded Raspberry Pi from Solar Assistant. You just go to the local IP address for the instance of Solar Assistant. Suggest...

Oof.

And here's me thinking torque is cheap.

I'm not much of a mechanic. I guess I have little to torque about.

Sounds like it. Hopefully they can sort out what's going on.

I have lots more but won't. It's on a knead to know basis.

I'll have naan of that, thanks.

Are you on a flourly wage? Now remember, no loafin around.

Talk about some crumby humour.

Do the batteries' BMSs themselves report correctly? I don't see this. My server rack batteries use a PACE BMS. Data taken from Solar Assistant via MQTT to Home Assistant & InfluxDB/Grafana:

Yeah, I didn't look too hard at the Victron specs, just knew that expecting 8kW from that model was unlikely and it would require a higher spec (more $). My AIO will actually do 8 kW (not just 8 kVA) but anything over that for like 15 seconds and it will shut down. It's rated for only...

How does the LiFePO₄ manage with the higher voltages FLA needs to sustain? Or do you have a device to switch banks in/out as needed?

I would not do this with flooded LA. The voltages they need are too high, but with these Enersys SLA unit, it seems to work well. The SLA are specified to be charged at 2.35-2.40 V/cell, which in 48V form is 56.4 V - 57.6 V. As our temps are generally pretty warm I normally use the lower end...

The recharge part of the experiment didn't quite go as planned. A nasty storm arrived in the afternoon so I put the car away and stopped the recharge from V2L test after about 2.5 hours. This was the result of the sharing of charge energy during that time: Initially the SLA was discharging...

If you only start with four significant digits, then you can't magic up more precision just by multiplying. The result should be kept at four significant digits. Indeed the final digit will have an error range, in this case +/- 1 e.g. 3.352 could be anywhere between 3.3515 and 3.3525. Multiply...